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A systematic review on bowel management and the success rate of the various treatment modalities in spina bifida patients
Saskia Vande Velde MD, Stephanie Van Biervliet MD PhD, Ruth De Bruyne MD, Myriam Van Winckel MD PhD
Department of Pediatric Gastroenterology, University Hospital Ghent Belgium
The authors declare no conflict of interest.
Correspondence addressSaskia Vande Velde
Ghent University Hospital
De Pintelaan 185
9000 Ghent, Belgium
Tel 0032 9 332 64 68
Fax 0032 9 332 21 70
e-Mail: [email protected]
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A systematic review on bowel management and the success rate of the various treatment modalities in spina bifida patients
Saskia Vande Velde MD, Stephanie Van Biervliet MD PhD, Ruth De Bruyne MD, Myriam Van Winckel MD PhD
Department of Pediatric Gastroenterology, University Hospital Ghent Belgium
ABSTRACT
Study design: systematic review.
Objectives: Determine the different treatment modalities aimed at achieving fecal continence in spina bifida
(SB) patients and their effectiveness .
Setting: international literature.
Method: Electronic databases were searched (’Pubmed’, ‘Web of science’, ‘CINAHL’ and ‘Cochrane’) identifying
studies published since the mid-eighties and screened for relevance according to the Centre for Reviews and
Dissemination procedure guidelines. Thirty seven studies were selected for inclusion.
Results: Studies on toilet sitting, biofeedback, anal plug, retrograde colon enemas (RCE) and antegrade colon
enemas were found. Fecal continence was achieved in 67% of SB patients using conservative methods (n=509).
In patients using RCE (n= 190) an 80% continence rate was reached. Patients following surgical treatment (n=
469) reached an 81% continence rate, however, 23% needed redo surgery because of complications. Better
fecal continence was associated with an improved quality of life which was negatively influence by the amount
of time spent on bowel management.
Conclusion: Evidence favors an individually tailored stepwise approach with surgery as a final step in case of
failure of conservative measures. Continued specialized support throughout life remains important to maintain
continence. Cross-over and comparative trials are needed in order to optimize treatment.
Key-words: spina bifida, fecal pseudo-continence, bowel management, constipation
INTRODUCTION
Spina bifida (SB) or meningomyelocele is a complex neuroembryological disorder resulting from a variable
degree of incomplete closure of the posterior neural tube. Clinical presentation is highly variable and depends
on the localization of the defect along the spinal cord and the degree of incomplete closure. These patients
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present with a spectrum of impairments, but the primary functional deficits are lower limb paralysis and
sensory loss, bladder and bowel dysfunction and cognitive dysfunction 1.
In the majority of patients the lower regions of the spine are affected, resulting in dysfunction of the distal
gastrointestinal tract: rectum, anus and anal sphincter. Voluntary control of defecation requires normal rectal
sensation, peristalsis and normal anal sphincter function. Two primary involuntary reflexes, the intrinsic and
parasympathic reflex, located at sacral level 2 to 4, initiate defecation. The pudendal nerve, responsible for
voluntary defecation, controls the opening and closing of the external anal sphincter. Nerve damage above the
S2 level will impair both involuntary reflexes and pudendal nerve function. Loss of the involuntary reflexes
perturbs rectal sensation and initiation of defecation. Damage of the pudendal nerve leads to partial or total
loss of the voluntary sphincter control. Perturbation of these processes will result in bowel incontinence which
is often associated with constipation in SB patients 2,3. Fecal incontinence in SB patients is reported to be
present in 28 to 53%, regardless of the therapy used 4,5-6-7.
Fecal and urinary incontinence importantly affect quality of life (QoL) in SB patients and form a major barrier to
attending school, obtaining employment and sustaining relationships. Krogh et al report that 66% of SB patients
older than 6 years with fecal incontinence perceive incontinence as having a negative influence on their social
activities 4. Lie et al report that 75% of SB patients with urinary incontinence regard incontinence as a stress
factor 8.
REVIEW QUESTION
After performing aA systematic literature review was performed regardingwhich treatment modalities for
constipation and/or fecal incontinence in SB are found and what is their success rate. Treatment success is
defined as fecal continence which corresponds to stool losses less than once a month.
REVIEW METHOD
The review is performed following the guidelines according to the Centre for Reviews and Dissemination
procedures (CRD) 9.
Study selection
Inclusion criteria:
- Original papers with full paper available
- Written in English
- SB patient cohort larger than 20
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- SB patients using any form of bowel management
Exclusion criteria:
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- No data on outcome of treatment for SB patients
- Review, opinion or editorial pieces
Study identification
The following databases were used for study identification: ‘Pubmed’ and ‘Web of science’, ‘CINAHL’ and
‘Cochrane’ database. A search was performed in March 2013. The following Mesh terms were used: ‘spina
bifida and bowel management’, ‘spina bifida and fecal incontinence’, ‘spina bifida and enema’
‘myelomeningocele and bowel management’, ‘myelomeningocele and fecal incontinence’, ‘myelomeningocele
and enema’. The search covered studies published since 1986 as this was the start of important bowel
management evolutions, with the introduction of retrograde colon enemas (RCE) by Shandling 10 and some
years later the antegrade colon enema (ACE) by Malone 11.
This database search resulted in a selection of 37 papers (see flowchart) 4-7,10,12-43.
A limitation of the review is the lack of search in grey literature as well as the absence of expert contact to
attain more information on the subject.
Data extraction was performed independently by two authors to avoid selection bias in the process. From the
full copies retrieved, two articles were not retained by both authors.
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RESULTS
37 studies were included in the review 4-7,10,12-43.
Most studies were observational studies with retrospective or prospective data on SB patient cohorts in a
single or multiple centre setting. Only two were randomized clinical trials on the use of electrical stimulation
(ES), of which one was double-blind controlled 23, and one was patient-blinded 26. All studies had a low grade of
recommendation 44.
Clinical data were collected using questionnaires 6,7,12-15,17,19, 23-25,29,30,34,35,37,43, neurogenic bowel dysfunction scales
45 20,26, quality of life questionnaires 4,16,21,22,27,28,31,32,38,41 or child behavior checklists 4,31. The collection methods
were interviews during follow-up visits 6,15,20,25, 43 or telephone contacts 4,7,12,17,23,32,38 or both 16,31,37,41.
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Titles and abstracts identified and screened
n= 1030
Full copies retrieved and assessed for eligibility
n= 215
Number of studies included in the review n= 37
- conservative treatment n= 16- electrical stimulation n= 4- surgical treatment n= 17
Excluded n= 178- SB group < 20 n= 41- Not in English n= 27
- No data on SB outcome n= 10- Review, opinion article n= 100
Excluded n= 815Studies excluded as double, urinary incontinence, other neurogenic problems, other anorectal diseases, animal
study
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The follow-up period of SB patients after starting bowel management varied from 3 months 15,19,20,22,23, 41,42, over
12 12,13,21,25,31, 30 16-18,27-30,34,39 and 60 months 24,32,33,35,36,40,43 to 120 months 38,43.
To explore different treatment modalities for bowel management in SB and their effectiveness the studies were
grouped according to the treatment modality: conservative bowel management (16 studies), electrical
stimulation (4 studies), and non-conservative (surgical) bowel management (17 studies).
Conservative bowel management
The studies on conservative bowel management were summarized in table 1. From the 16 studies, 1 reported
on toilet sitting, 2 on biofeedback, 1 on anal plug use, 4 on a stratified treatment strategy and 8 on RCE.
Most studies on bowel management used the above mentioned strict continence definition (no stool
loss or stool loss less than once a month) 4,6,12,16-21. Some studies gave no definition 7,13,15 or used a less strict
definition 5,10,14,22. The results for fecal pseudo-continence achievement using conservative bowel management
varied from 36% 13 to 100% 10. In order to calculate the combined continence rate, only the studies using the
strict continence definition of stool losses less than once a month, were used. Fecal pseudo-continence was
achieved in 67% (341/509).
Looking only at the studies on RCE (n=8), fecal pseudo-continence was achieved in 80% (144/190). Two
studies reported on the effect of RCE on constipation. Mattsson et al reported absence of constipation when
using RCE 19, whereas Ausili et al reported 60% (36/60) constipation relief using RCE 20. In both studies all SB
patients suffered from constipation at the start. The irrigation fluid used was saline in 3 10,16,18 tap water in 4
17,19,21,22 and one did not mention the fluid type used 20. The irrigation volumes used were sometimes fixed body
weight related quantities (20 ml/kg) 10,16,17 or varied between 300 ml 19 and 616 ml 21.
The time spent on treatment was not often reported 7,12-15,17,20 and if reported varied from 15 min
5,10,16,21,22 over 30 min 18 to 60 min 19. Krogh described a 3 times increase in treatment time when comparing RCE
with digital evacuation 4.
Although achieving fecal pseudo-continence is the primary treatment goal, patient satisfaction is an
important secondary goal. Results on satisfaction could not be compared as all reporting studies used different
questionnaires and scales. Some studies reported an improvement of satisfaction or a high satisfaction rate
associated with successful bowel management 16,17,19-21. The study of Shoshan et al described a significant
reduction of daily life impairment by fecal incontinence after bowel management intervention 15. Finally
implementing a stepwise fecal incontinence treatment protocol improved fecal pseudo-continence and in
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parallel resulted in better socialization, less need for support by the caregiver and less negative emotional
impact 22. However, 2 studies reported RCE to be ‘a daily burden’. In both studies the time spent and the energy
needed to perform RCE were perceived as a major obstacle 17,19. Non-compliance and non-motivation could be
a result of dissatisfaction with the treatment choice. King et al reported a non-compliance rate of 28% 12.
Electrical stimulation
The studies on electrical stimulation were summarized in table 2.
Due to different stimulation techniques and result reports, the studies are not comparable. Most studies (3/4)
used the above stated definition of pseudo-continence 23-25. Only the study of Kajbafzadeh used a less strict
pseudo-continence definition 26. The achieved pseudo-continence rate ranged from 50% 24 to 70% 25. An
increased spontaneous stool frequency was reported by 2 studies 23,26. Only one study reported a 73% decrease
of constipation. The study of Marshall et al was the only double blind randomized placebo-controlled trial
reporting an important placebo effect (no actual data available).
Non-conservative, surgical bowel management
The studies were summarized in table 3. During a surgical procedure the appendix (or ileum if appendix is not
available) is used to create a catheterizable stoma. Besides using the appendix or creating a stoma a cecostomy
can be made laparoscopically or percutaneously. A stoma or cecostomy can be placed both right- or left-sided.
In this review mainly results on right sided stoma were found.
Most studies (10/17) on surgical bowel management or antegrade colon enema (ACE) used the strict
definition for fecal pseudo-continence (no stool loss or stool loss less than once a month) 28,30-32,35-39,43. Some
studies (5/17) gave no definition for fecal pseudo-continence 27,29,33,40,41 or a less strict definition 42. One study
evaluated incontinence with a 5 point Likert scale 34. The reports on achieving fecal pseudo-continence using
non-conservative bowel management varied from 60% (only adults) 43 to 94% 35,36. Again only the studies using
the above mentioned strict definition of pseudo-continence were used to calculate the overall effectiveness of
non-conservative treatment. Fecal pseudo-continence was achieved in 81% (378/469). No study reported on
constipation. The wash-out fluid used was saline in 4 27,32,37,42, tap water in another 4 studies 31,35,36,39 and a
combination of both in 2 34,43. Five studies did not mention the type of fluid used 28,30,33,40,41. Most authors do
not mention the volumes used (9/17)28-30,33,37, 38,39, 40,41. When mentioned, volumes varied between 300 ml 27 and
1500 ml (in adults) 43. The time spent for treatment was not reported in nine studies 28-3033,35,36,38-40. If reported it
varied from 30 min 27,37,43 to 50 min 31,32,34,41-43.
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Complications are an important issue in case of surgical treatment. The complication rate varied widely. It was
not clear whether studies reported all complications in a comparable way. The follow-up time of the different
studies is different, also leading to a different complication rate. The most frequently reported complications
were stomal stenosis, wound infections and perforations. Redo surgery for complications varied from 5% 29,38
over 10% 27,36,40 to an even higher rate of 30% 28,31,32,42. Overall redo surgery was necessary in 23% (142/616) of
patients.
Comparison of the satisfaction rate was not attempted due to the differences in questionnaires and
scales used. An improved satisfaction or a high satisfaction rate when using ACE was reported in 6 studies 27-
29,31,32,38. One study described a significant improvement in anxiety, depression and bother of both caretakers
and patients 41. However, most studies report a drop-out rate of 5% 29 to 30% 38. This could be perceived as
dissatisfaction of the used strategy. Lack of transition care is, as reported by one study, also an important
reason for dissatisfaction. This issue was also reflected in a difference of pseudo-continence rate between
children and adults as described in one study, with children achieving higher rates associated with stricter
follow-up 43.
DISCUSSION
Most studies included in the review report on case series or patient cohorts without controls and therefore no
conclusions are drawn regarding best mode of treatment. Further on, data were collected retrospectively in
most studies and only a few used standardized questionnaires. Follow-up since starting treatment varied
widely. Only two randomized trials both on electrical stimulation were identified. One was a double blind-
placebo controlled study, including however a very small patient group without clear end-points. Therefore
stating recommendations or drawing conclusions on the different types of treatments used, is tentative.
The results indicated that several treatment strategies can achieve pseudo-continence. Large colon washouts,
retrograde or antegrade (surgical), however, seem to provide the best overall outcome. The RCE treated
patient group (n=190) is smaller and has a shorter follow-up period compared to the patients treated by
surgery. Despite the good pseudo-continence results, most authors state that surgery remains the final step in
bowel management because of the amount of complications and drop-outs associated with this treatment
modality. Some also consider ACE procedures in case of urological interventions. RCE, should be considered as
first line treatment when both patients and parents are willing to invest in fecal pseudo-continence. Rigorous
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follow-up and problem solving in case of treatment failure with extra attention for transition care from
adolescence to adulthood is of major importance in becoming and staying fecal pseudo-continent.
For all the treatment strategies used, the balance between successful therapy and the daily time investment
will influence the compliance. Several studies tried to measure the impact of both fecal incontinence and
treatment issues on social life and daily burden. The wide variety in disease severity as well as the multitude of
health issues involved, make the QoL measurement especially difficult.
Most centers use a stepwise and individually tailored protocol in the treatment of fecal incontinence with ACE
surgery as a last step. These programs are largely experience based and hardly evidence based. A common
relevant definition of fecal pseudo-continence is needed to compare study results. In order to ameliorate
results and gain insight in which treatment suits which patient, multi-center comparative trials will be needed
in patients with comparable impairments, using standardized QoL outcome measurements. Cross-over trials
are needed to compare the effect of different irrigation modalities in both RCE and ACE.
More research is needed to evaluate different techniques, long-term results of treatment and prediction of
success or failure using clearly defined fecal pseudo-continence as a primary goal and standardized QoL
evaluation as a secondary goal.
CONCLUSION
Irrigations both retrograde and antegrade are valuable treatment options in becoming fecal continent for SB
patients. Surgery is currently used as final step in achievement of pseudo-continence. The burden of treatment
can be important and should be accounted for. More research is needed to evaluate different techniques, long-
term results of treatment and prediction of success or failure using clearly defined fecal pseudo-continence as a
primary goal and standardized QoL evaluation as a secondary goal. Motivational support and strict follow-up of
SB patients regarding fecal incontinence plays an important role in the outcome.
The authors declare no conflict of interest
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Table 1: Summary of papers on conservative bowel management in spina bifida patients
Author Sample size, age, type
Follow up (FU)/ Therapy time (TT)
Fecal continencedefinition
Study design results effectiveness results satisfaction
King et al, 94 12
n= 40 SBAge: 18mo-29yLesion level (LL): 12 T, 25L, 2SFecal incontinent (FI): 35/40Constipation: nm
FU: 15mTT: not mentioned (nm)
Stool loss < 1x/ month
Single centreRetrospective chart reviewProspective bowel program: daily, regular, consistently timed, reflex-triggered bowel evacuation Phone FU /2w & during FU visits
Continence: start 5/40 (12,5%), 15m: 24/40 (60%)24/40 compliant, 19/24 (79%) continent11/40 non- compliant, none continent (p<0.0001).
Not evaluated
Whitehead et al, 86 13
n= 33 SBAge: 5-16yLL: T10-S2 no mentalimpairmentFI: nmConstipation: nm
FU: 12m TT: nm
Not defined Single centreProspective controlled trial. Daily symptom log, 1m before & during19 SB behaviour modification: 10’ toilet sitting every evening14 biofeedback /2w & behaviour modification.
Biofeedback: (before) 5,38 to 1,93 (12m) accidents/week5/14 (36%) continentBehaviour: (before) 5,77 to 2,3 (12m) accidents/week4/19 (21%) became continent.No significant difference between groups
Not evaluated
Ponticelli et al, 98 14
n= 73 SB (67 congenital)Age: 7-25 yLL: L5-S1 lesionsFI: 52Constipation 57
FU: nmTT: nm
Not defined Single centreProspective controlled trialQuestionnaire evacuation habits10 biofeedback sessions12 conventional treatment (laxatives, stimulants, enema)30 no treatment
Biofeedback: 2/10 improved, 4/10 full bowel controlConventional treatment: 7/12 improved.No statistical analysis done
Not evaluated
Shoshan et al, 08 15
20 SBAge: 4-29yLL: T4-L5 FI: 17 diapers, 3 pads
FU: 5w TT: nm
Not defined Single centreSelf-controlled clinical trial.Daily record. FU visits at week 0,1,2,5. Anal plug use start at week 1.Effect on FI scale 0-4 (0=not
15/20 completed the studyAccidents/w start: 4(0-28), 5w 0(0-8) (p=.002)
Baseline 50% FI severely impedes daily life.5w 40% slight interference Significant reduction of FI scale (p=.001).
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Constipation: nm bothersome, 4= very bothersome).
Malone et al, 94 7
n= 109 SBAge 9-47.8y68 wheelchairLL: nmFI: 55Constipation: nm
FU: nmTT: nm
Not defined MulticenterQuestionnaires random cohort <2000 patient database109/144 responded
94/104 regular toileting26/104 manual evacuation25/104 laxatives13/103 suppositories 55/104 (53%) regular soiled
Not evaluated
Krogh et al, 03 4
n= 125 SBAge: 2-18yLL: nmFI: 55Constipation: nm
FU: nmTT: RCE: 133’; digital: 61’; no method 132’
Stool loss < 1x/ month
Multicenter184 item questionnaire (tested for reproducibility and validity) & validated CBCL125/208 (100 > 4y old) responded
25/125 digital evacuation13/125 suppositories35/125 RCE35/125 laxatives55/100 (children >4y old)(55%) FI
10/42 FI major influence on QoL in 2-5y old21/46 FI major influence on QoL in 6-10y old17/37 FI major influence on QoL in 11-18y old
Verhoef et al, 05 6
n= 350 SBAge: 16-25y70 wheelchairLL: L5-S1 lesionsFI: nmConstipation: nm
FU: nmTT: 58/179 > 15min a day
Stool loss < 1x/ month
MulticenterData collected from interviews and neurophysiological testing, retrospective medical history179 responded from 350
31/179 laxatives49/179 RCE27/179 manual evacuation61/179 (34%) FI
47/61 (77%) perceived FI as a problem
Vande Velde et al, 07 5
n= 80 SBAge: 5-18y33 wheelchairLL: 26 <S2, 22 L5-S1, 32>L4FI: nmConstipation: nm
FU: nmTT: RCE and ACE 21min a day [8,5-35min/day]
Stool loss < 1x/ week
Single centre Descriptive cohort studyStepwise therapeutic strategy
5/80 regular toileting (no FI)13/80 manual evacuation (38% FI)24/80 RCE (13% FI)16/80 ACE (no FI)22/80 (27%) FI
Not evaluated
Shandling and Gilmour, 87 10
n= 112 SBAge: 4-20yLL: nmFI: 112 Constipation: nm
FU: nmTT: 15 to 20 min
Stool loss < 4x/month
Single centreRCE with balloon catheter with saline water 20 ml/kg every 24 to 48h
4 dropped out5 returned to RCE after initially dropping out100% continence rate
Not evaluated
Liptak and Revell,
n= 31, 30 SBAge: 3-19yLL: T-S4
FU: 30 months TT: 21 min
No stool loss Single centreProspective clinical trial.After bowel cleaning, start RCE with
6 dropped out first 3 weeks9 dropped out after 18moFI dropped from 72% (18/25)
Mean satisfaction score increased from 1.1 to 2.8 after 18mo and 3.3 after 30mo
112122
92 16 FI: 18/25 Constipation: 14/25
balloon catheter, every 24 to 48h with saline water 20ml/kg.Standardized questionnaire over telephone or by visit. Satisfaction rate 1-4 (1= extremely dissatisfied, 4= extremely satisfied).
to 29% (7/25) at 18mo and to 6% (1/16) after 30mo (p<.01)
(p<.01)
Schöller-Gyüre et al, 96 17
n= 53 SBAge: 7mo-22yLL: nmFI: 14 Constipation: 14
FU: 33 months TT: nm
No stool loss Single centreCase review and questionnaire.RCE with cone catheter with tap water 20ml/kg every 24h.Frequent telephone contact.
41 returned questionnaire27/41 (66%) complete fecal continence. 6/41 RCE painful, 3/41 RCE unpleasant
Parental satisfaction high in 63%, good in 37%.Major disadvantage is time and energy to perform RCE (51%), daily burden on family (39%)
Eire et al, 98 18
n= 33 SBAge: 5-22yLL: nmFI: nmConstipation: nm
FU: 30 monthsTT: Median 30 min [15-45 min]
No stool loss Single centreSelected and well-motivated patientsRetrospective case review.After desimpaction, start RCE with balloon catheter saline water, median 500 ml every 24h and at continence, every 48 h
32/33 became continent2/33 were independent
Not evaluated
Mattsson and Gladh, 06 19
n= 40 SBAge: 10mo-11yLL: nmFI: 40 Constipation: 40
FU: 4 months, up to 8y after RCETT: 12 to 60 min
No stool loss Single centreParental questionnaire (8 questions).RCE with cone catheter with tap water, median 300 ml every 24hPlasma sodium levels in 28 SB before start and after 1mo or 1yManometry in 28 SB before and after 1-3y
5 dropped out35/40 were continentAll free of constipation1/40 was independent
35/40 found RCE satisfactoryAll found RCE time consuming36/40 parents reported general improvement in well-being
Ausili et al, 10 20
n= 60 SBAge: 8-17yLL: nmFI: 16 Constipation: 60
FU: 3 monthsTT: nm
Stool loss < 1x/ month
Single centreProspective clinical trial.Validated questionnaire (NBD score, range 0-47 (47= severe bowel dysfunction)45) and QoLVisit at start and after 3moRCE with balloon catheter
36/60 (60%) relief of constipation 12/16 (75%) relief of faecal incontinenceNBD decreased from 17,5 to 8,5 after treatment (p<.001)
parents reported an improvement on QoL and degree of satisfactionNBD score improved from 17.5 to 8.5 (p<.001)
Pereira et al, 10
n= 40, 28 SBAge: 6-25y
FU: 12 monthsTT: average 15-
No stool lossPseudo-
Single centreProspective clinical trial
35 returned questionnairePseudo-continence rose from
Mean grade of satisfaction was 7.3
122324
21 LL: nmFI: nmConstipation: nm
30 min continence: no stool loss with treatment
Standard questionnaire on bowel function and QoL (rate 0-10, 0= great reduction, 10= great improvement)RCE with balloon catheter withaverage 616 ml tap water, every 3 days
10/35 to 28/35 (80%)16/35 partially or total independentSignificant less time spent than conventional bowel management
Choi et al, 13 22
n= 53 SBAge: 3-13.8yLL: nmFI: nmConstipation: nm
FU: 4 monthsTT: 15.9 min
Stool loss <1x/week
Single centreProspective clinical trialSurvey questionnaire on bowel symptoms, QoL and general characteristics (40 items)Stepwise bowel program: first polyethylene glycol 3350 at 0.5g/kg/day, if failure start RCE with cone or balloon catheter with tap water every 48 to 72h
6/53 (11%) success43/47 (81%) successBowel care time decreased from 27 to 15.9 min (p=.003)FI per week decreased from 6.9 to 0.5 defecations per week (p=.004)
Significant reduction in impact on travel and socialization (p=.006)Significant reduction in caregiver support and emotional impact (p<.001)
Legend: FU: follow up, FI: fecal incontinence, SB: spina bifida, NBD: neurogenic bowel dysfunction, QoL: quality of life, CBCL: child behavior checklist, RCE: retrograde colon enema, ACE: antegrade colon enema
Table 2: Summary of papers on electrical stimulation in spina bifida patients
Author Sample Follow up/ defecation time
Definition faecal continence
Study design Findings - effectiveness Findings - satisfaction
Marshall and Boston, 97 23
n= 50 SBAge: 4-18yLL: nmFI: nmConstipation: nm
FU: 6 weeksTT: nm
Not defined Single centreRandomized double-blind placebo- controlled trialDaily 1h at home ES stimulation on skin: 26 treatment, 24 shamRegular telephone contact to stimulate complianceOne week diary
49% more spontaneous stools in active ES, but not significant Important placebo effectNo adverse effects
Not evaluated
Palmer et al, 97 24
n= 55 SB Age: 2-14y
FU: 12-72 months
Improvement:- less
Single centreProspective clinical trial
20/55 (36%) complete success (improvement of all parameters)
Inclusion of parental subjective opinion decreased the success
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LL: nmFI: nmConstipation: nm
TT: nm defecations- better rectal sensation- ability to hold consciously
Home transrectal ES30min/d, 5 d/w
30/55 (55%) moderate success (improvement of any parameter)71% complete bowel continenceNo adverse effects
rate of this therapy
Han et al, 04 25
n= 24 SB Age: 4-13yLL: nmFI: nmConstipation: nm
FU: 15.8 monthsTT: nm
No stool loss Single centreRetrospective case reviewDaily 1h at home transurethral ES, 5days/w for 4wFU cycles: 2w every 3 to 6moOne week diary before treatment and subsequent cycles
Mean episodes of faecal incontinence decreased significant from 7.3 to 4.8 a week (p<0.05)Complete faecal continence in 50% (12/24)Urinary tract infections in 10 patients during transurethral ES
Not evaluated
Kajbafzadeh et al, 12 26
n= 30 SB Age: 3-12yLL: nmFI: nmConstipation: nm
FU: nmTT: nm
Stool loss < 1x/ week
Single centreRandomized controlled trialHome cutaneous ES for 20 min, 3x/w: 15 treatment, 15 shamBowel habit diary, NBD: range 0-47 (47= severe bowel dysfunction)45
Manometry before and 6mo after treatment
Constipation is decreased in 11/15 (73%) and remained in 8/15 (53%) after 6mo Significant increase of stool frequency from 2.5 to 4.7 stools/w after treatmentSignificant improvement manometry measuresNo adverse effects
Not evaluated
Legend: ES: electrical stimulation, SB: spina bifida, FU: follow up, NBD: neurogenic bowel dysfunction
Table 3: Summary of papers on non conservative bowel management in spina bifida patients
Author Sample Follow up/ defecation time
Definition faecal continence
Study design Findings - effectivenessFindings - complications
Findings - satisfaction
Hensle et al, 97 27
N= 27 SBAge: 10-31y22 wheelchair
FU: 9-30 monthsTT: 30 min
Not defined Single centreRetrospective case reviewMalone ACE, 8 concomitant
2 dropped out19/25 (76%): complete bowel control
25/27 reported substantial improvement in their QoL
14
233
234
235
236
2728
LL: nmFI: nmConstipation: nm
urologic surgerySaline water 300 mlStandard QoL questionnaire
10/27 complications3/27 redo surgery
Shankar et al, 97 28
N= 40, 27 SBAge: 6-21y14 wheelchairLL: nmFI: nmConstipation: nm
FU: 21 monthsTT: nm
Stool loss < 1x/ month
Single centreRetrospective case reviewMalone ACE every 48hQoL improvement (QOLI) score: 0-5 (5: ideal)CTT and manometry in 34
4 dropped out17/27 (63%) success23/40 complications11/40 redo surgery
Mean QOLI: 3.5, all report some improvement in QoLQOLI significant lower in SB wheelchair group (p=.033)
Webb et al, 98 29
N= 57, 43 SBAge: 5-30yLL: nmFI: nmConstipation: nm
FU: 30 months
Not defined Single centreRetrospective case reviewMalone ACE every 72h phosphosoda or soapy water, 21 concomitant urologic surgery
2 dropped out40/43: good to excellent results8/57 complications3/57 redo surgery
Overall patient satisfaction is good to excellent
Curry et al, 99 30
N= 273, 108 SBAge: 7.5-29.9yLL: nmFI: nmConstipation: nm
30 months Full: totally clean or minor leakage on night of washout
Multicenter retrospective proformaMalone ACE or button (19/273)
68/108 (63%) full success111/273 complications
Not evaluated
Aksnes et al, 02 31
N= 20 SBAge: 6.3-17yLL: nmFI: 16 Constipation: 4
FU: 16 monthsTT: 50 min [30-75]
No stool loss Single centreProspective clinical trialMalone ACE 900ml tap waterStandardized questionnaire before and 6mo after ACE, CBCL, YSR, SPPA 1-4 score (4=describes me very well)Follow up visit and telephone
16/20 gained independency16/20 complete continence6/20 redo surgery
SPPA: postoperative improved self-esteem (p=.04) and close friends (p=.006)CBCL and YSR no difference pre- and postoperative
Dey et al, 03 32
N= 62, 31 SBAge: 3.8-21.4y
FU: 65 monthsTT: 53 min
Stool loss < 1x/ month
Single centreRetrospective casenote reviewAppendix ACE 550ml saline
11 dropped out27/32 (84%) continent35/62 complications
Median satisfaction score: 9(10=completely satisfied)Significant correlation between
152930
LL: nmFI: nmConstipation: nm
[15-180] waterQuestionnaire: 32 responded from 51 still using ACE
22/62 redo surgery continence and satisfaction (p=.04)
Casale et al, 06 33
N= 275 SBAge: mean 11yLL: nmFI: nmConstipation: nm
FU: 45-120 monthsTT: nm
Not defined Single centreRetrospective chart review215 Malone ACESingle surgery compared to combined urologic surgery (n=158)
94% continence, no difference between groups27% complications, no difference between groups
Not evaluated
Lemelle et al, 06 34
N= 423 SBAge: 10-47y145 wheelchairLL: nmFI: nmConstipation: nm
FU: 36 monthsTT: 50min [15-90]
5 point Likert scale (1=permanent, 2=frequent, 3=occasional, 4=rare, 5=never)
MulticentreClinical interview and medical chart reviewRight ACE: 40, left ACE: 7, 1.2L tap or saline waterConventional treated group (n=382) compared to ACE group (n=41)
6 dropped outACE group is significant youngerACE group significant less FILeft ACE tends to shorter defecation time and worse FI
Not evaluated
Bani-Hani et al, 08 35
N= 236, 199 SBAge: 2-36yLL: nmFI: nmConstipation: nm
FU: 50 monthsTT: nm
No stool loss Single centreRetrospective chart reviewMalone ACE daily 642ml tap waterEvaluation of use of additives:- immediate FI: larger volume or more time on toilet- midday FI: bowel cleanout and add 17mg MiraLAX
196/236 (83%) continence rose to 221/236 (94%) using additives
Not evaluated
Cain et al, 08 36
N= 236, 199 SBAge: 2-36yLL: nmFI: nmConstipation: nm
FU: 50 monthsTT: nm
No stool loss Single centreRetrospective chart reviewMalone ACE daily, 642ml tap water
221/236 (94%) continent98/236 complications51/236 redo surgery
Not evaluated
163132
Wong et al, 08 37
N= 64, 41 SBAge: 6-15yLL: nmFI: nmConstipation: nm
FU: nmTT: 5-60min
No stool loss Single centreRetrospective chart review Interviews and telephone, structured questionnaire score 0-24 (0=full continence, 24= complete incontinence)Chait cecostomy glycerine or saline water every 48 to 72h
FI score in SB improved from 18 to 728/64 complications
Not evaluated
Yardley et al, 09 38
N= 61,27 SBAge: 15.5-35.1yLL: nmFI: nmConstipation: nm
FU: 132 monthsTT: nm
Stool loss < 1x/ month
Single centrePostal/telephone questionnaire
25 dropped out11/16 (69%) SB continent5/36 complications2/36 redo surgery
Satisfaction score of ACE users: 4 (1=very unsatisfied, 5= very satisfied)High dissatisfaction with transitional care
Matsuno et al, 10 39
N= 25 SBAge: 4.1-23.1y5 wheelchairLL: nmFI: nmConstipation: nm
FU: 27.5 monthsTT: 37.7 min [20-60]
No stool loss Single centreComparing RCE to ACE retrospectively
- 13 patients RCE- 12 patients ACE
tap water, daily to every 48hage is significant (p=0.009) younger in RCE compared to ACE
10/13 (77%) RCE pseudo-continent 8/12 (75%) ACE pseudo-continent 3/13 RCE independent 8/12 ACE independent
Not evaluated
Bar-Yosef et al, 11 40
N= 21 SBAge: 6-22yLL: nmFI: nmConstipation: nm
FU: 56 monthsTT: nm
Not defined Single centreRetrospective chart reviewArtificial urinary sphincter and Malone ACE
19/21 (90%) full fecal continence3/21 complications2/21 redo surgery
Not evaluated
Ok and Kurzrock, 11 41
N= 23 SB familiesAge: nmLL: nmFI: nmConstipation:
FU: 6 monthsTT: 45 min
Not defined Single centreFICQoL: 51 item questionnairebefore and 6 months after ACE procedure- 23 families before surgery- 18 families after surgery
Diaper need decreasedAccident number improved from 3.9 to 0.3 per week (p<0.01)
Significant improvement in caretaker anxiety, depression and bother
173334
nmSiddiqui et al, 11 42
N= 105, 40 SBAge: median 11.1yLL: nmFI: 21 (10/40 SB)Constipation: 38Mixed: 46
FU: 6 monthsTT: 51.7 min ±3.5 min
Stool loss <1x/week
Single centreRetrospective chart reviewPercutaneous or surgical ACE 847ml, GoLYTELY or saline water every 24 to 48h20 concomitant urologic surgery
30/40 (75%) SB continent74/117 complications39/117 redo surgerySignificant increase in total complications with poor outcome in percutaneous ACE
Not evaluated
Vande Velde et al, 13 43
N= 40 SB25 children age: 5-17y15 adults age: 18-38y16 wheelchairLL: 8S, 30L, 2TFI: nmConstipation: nm
Children FU: 60 monthsTT: 35 min [15-60]Adults FU: 132 monthsTT: 60 min [30-120]
No stool loss Single centreRetrospective cohort descriptionQuestionnaire at clinicComparing RCE and ACE use in children and adults- child 18 RCE, 7ACE- adult 4 RCE, 11 ACE
5 dropped out19/25 (76%) children continent9/15 (60%) adults continent5/25 children independent8/15 adults independentSignificant relation between follow-up and continence
2/6 children perceived incontinence as social problem compared to 4/6 adults did
Legend: SB: spina bifida, ACE: antgrade continence enema, RCE: retrograde continence enema, QoL: quality of life; CTT: colonic transit time; CBCL: child behaviour checklist; YSR: youth self-report; SPPA: self-perception profile for adolescents; FICQoL: fecal incontinence and constipation QoL
18
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